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Caesium dibismuthide
Identifiers
CAS Number	12048-44-1 ;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/2Bi.Cs Key: FRDGCOOVOGBFOY-UHFFFAOYSA-N;
	SMILES [Cs].[Bi].[Bi];
Properties
Chemical formula	Bi2Cs
Molar mass	550.86625 g·mol−1
Melting point	630 °C (1,166 °F; 903 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Caesium dibismuthide is an inorganic compound with the chemical formula CsBi₂. It can obtained by reacting bismuth and caesium at 650 °C and allowing it to cool down, obtaining light silver crystals. The crystals belong to the cubic Fd3m space group,^[2] and have a Cu₂Mg structure.^[3] Some sources point out that it is not sensitive to air and is slightly sensitive to moisture.^[2] However, other sources also mention that it decomposes and releases heat after being left in the air for a few minutes.^[4]

References

^ Zhuravlev, N. N. (Oct 1958) [15 Nov 1957]. "Structure of superconductors XIII: Investigation of bismuth-cesium alloys" (PDF). Journal of Experimental and Theoretical Physics. 34 (7). USSR: 571–573.
^ ^a ^b Emmerling, Franziska; Längin, Nina; Petri, Denis; Kroeker, Martin; Röhr, Caroline (Jan 2004). "Alkalimetallbismutide ABi und ABi₂ (A = K, Rb, Cs) — Synthesen, Kristallstrukturen, Eigenschaften". Zeitschrift für anorganische und allgemeine Chemie. 630 (1): 171–178. doi:10.1002/zaac.200300312. ISSN 0044-2313.
^ Zhuravlev, N. N. Structure of superconductors. XIII. Investigation of bismuth-cesium alloys. Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, 1958. 34: 827-829. ISSN 0044-4510.
^ Gutowska, Sylwia; Wiendlocha, Bartlomiej; Klimczuk, Tomasz; Winiarski, Michał J. (2023-07-27). "Superconductivity in Bismuth Pyrochlore Lattice Compounds RbBi₂ and CsBi₂ : The Role of Relativistic Effects". The Journal of Physical Chemistry C. 127 (29): 14402–14414. doi:10.1021/acs.jpcc.3c02176. ISSN 1932-7447.